answersLogoWhite

0


Best Answer

The two hoses going into the firewall are for your heater core. Chances are the core is plugged if one hose is hot and the other is cold. If so, remove both hoses and attach two 3 ft 5/8" plastic see thru hoses on them ( $3) the pour in a container of cooling system flush ($4)into both hoses and let it work. Now take a garden hose and give each side a good blast and you should see all kinds of corrosion blast out. Now do it again. If this does not work, your core probably will need replacing. I hope this helps you. Mark

User Avatar

Wiki User

โˆ™ 2005-11-28 00:29:59
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar
Study guides
๐Ÿ““
See all Study Guides
โœ๏ธ
Create a Study Guide

Add your answer:

Earn +20 pts
Q: Got a renalt laguna and car is hot but heater blowing cold air what do you do to fix it?
Write your answer...
Submit
Related questions

Why is my Laguna heater blowing cold air only?

Probably blocked heater matrix. Best thing to do is flush the cooling system with the best stuff you can get.


Why is my 98 Renault laguna blowing cold air the 2 pipes from heater core are hot there is a slight heat from the blower when its turned on?

the heater matrix is blocked


Jeep Wrangler has no heat?

What do you mean by "has no heat"? No air blowing out, blowing out cold air when heater is on, blowing nothing at all? Heater not turning on? What specifically is happening?


Why is your home electric heater blowing cold air?

One reason your home electric heater is blowing cold air is the heating elements are burned out. A bad thermostat may also be the problem.


Why is your car heater blowing out cold air when it is on?

Low coolant and a clogged heater core are possibilities.


Heater blowing cold but car not overheating?

faulty control valve on heater or air in the lines


Why is your home heater blowing cold?

Check to see if you pilot light is lit


Why is your 93 GA GT runs cold and the heater does not work?

If you are saying the heater is blowing out cold air you need to change the heater core which is located inside the dash


Why is the heater blowing cold air on a Kia Sephia?

You may need to replace your Thermostat or your Heater Core.


2001 Pontiac grand am heater blowing cold air?

did you check the heater core because my truck did that and that was what was wrong


Why is the heater in your 2001 Navigator blowing cold air?

because u pooped in it


What is the cause of your heater blowing cold air?

Most likely your pilot light is out


Why is the heater in my 99 ford windstar only blowing cold air?

The most common reason the heater is blows cold air on a 1999 Ford Winstar is a bad thermostat or blocked heater core.


Why does your heater blows cold then hot then cold then hot?

It is because your heater is having to heat up so its blowing cold air out while its heating up.This means your heater is not very efficient and it needs to be checked.


1989 Chevy Corsica has no heat or defrost or blowing at all why?

If you feel no air blowing at all (when you are not moving) then your fan is not blowing. If it is blowing air, and it is cold, when the heater is on, then most probably your heater core is leaking, or is clogged. These are easily replaceable and go bad all the time in older cars.


Why is Daewoo matiz heater blowing cold air only?

it is blocked and needs to be flushed out


The heathing in your car is blowing cold all the time?

it is your heater core most likey


My car is blowing out cold air not hot when the heater is on.?

You need to change your thermostat in the car.


What should you check if your heater stopped working in a 1993 Jeep Cherokee?

Which part isn't working? Is it blowing air but it stays cold, is it not blowing at all or is it just blowing to the defroster?


Vauxhall vectra b with air con heater blows cold?

Same problem vectra heater only blowing cold checked water coolant and it was empty. Topped up now blowing hot just hope I not got head gasket probe


Why is the heater in your 1997 jeep wrangler blowing cold air?

it could be a couple of things you could have a bad thermostat or a bad heater core


Why is the heater in your 1998 Plymouth voyager blowing out cold air?

it's old and you need to change it.


Why is the heater blowing cold air on a 2000 mountaineer?

Because you don't have enough coolant in your radiator.


Why is your 2000 Pontiac Montana blowing cold air?

You should check the thermostat and the fuse for the heater.


Your 1998 Jimmy heater is blowing cold air I have replaced the thermostat and that did not help.?

heater core plugged or air locked check to see if hoses going to heater core are hot